15. Phala-nana (Knowledge of Fruition)
In the Seven Purities, this yana is Nanadassanavisuddhi (Purity of knowledge and Vision). When magga-citta (path consciousness) occurs in the previous yana (14th) and has nibbana as its object, it destroys kilesa completely – then, in this yana, phala-citta arises, and the feeling is of a very deep peace. This sequence is dhammaniyama, the order of the norm – i.e. phala-citta always follows magga-citta. When phala-citta occurs, it happens sometimes in three thought moments, and sometimes two. The faster yogi, with three thought moments, skips parikama (see Fig 3-1) and begins with Upacara, then Anuloma, Gottorabhu, Magga, and then Phala (fruition) three times, instead of two.
Phala-citta is lokkutura-vipaka, which is the supramundane result from magga-citta. It just occurs, and then ends – it has no function. After it is over, nibbana is no longer the object. In phala-nana the yogi becomes ariya-pugghala for the second time (the first time was in magga-nana – 14th). He is now called Sotapatti-phala-pugala and is assured of full enlightenment in not more than seven more births.
In the Wisdom Stages, this yana is completely in kata-nana.